covers the requirements for Visual Examination (VT) .
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The visual application tools, instruments, and equipment required.
specifically outlines the mandatory requirements for Visual Examination of welds, base materials, and clad surfaces. It applies to:
ASME Section V, Article 9 defines a visual examination as the use of the eye, either alone or with various aids, to evaluate the condition of a part, component, or structure. It detects surface flaws, structural misalignments, dimensional deviations, or leaking signs. Essential Coverage covers the requirements for Visual Examination (VT)
The effectiveness of Article 9 relies heavily on the skill of the inspector.
Factors that must be documented but do not require re-qualification if altered.
When physical constraints, extreme temperatures, or radiation hazards prevent direct access (such as looking inside a long pipe or a nuclear reactor core), remote visual examination is deployed. If you share with third parties, their policies apply
When access to a component is restricted—such as the inside of a narrow pipe or a hazardous nuclear reactor vessel—remote visual examination is deployed.
Based on actual ASME audit findings (NCRs), here is where most organizations fail Article 9 compliance:
To comply with Article 9, a visual examination cannot simply be an informal look-over. It must follow a highly structured, qualified, and documented written procedure. Written Procedure Requirements